Her Ways Are Death - Jack Mann [pseudonym of Charles Henry Cannell (1882-1947), who legally changed his name to Evelyn Charles Henry Vivian when he joined the British army at age 18].
Her Ways Are Death is the seventh book in the series about supernatural detective Gregory George Gordon Green (known as "Gees"). It was originally issued in hardcover in Great Britain in 1941 by Wright & Brown.
It was first published in America in the June 1952 issue of the pulp magazine Famous Fantastic Mysteries.
This 1981 Bookfinger hardcover edition (issued without dust jacket) marked its first appearance in the US in book form.